Thanks to its excellent products and quality services, UNT Duct is one of the leading pu pre-insulated hvac panel manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
PU Pre-insulated HVAC Panel
PU Pre-insulated HVAC Panel is an advanced, all-in-one building material specially designed for modern heating, ventilation and air conditioning systems. It integrates structural strength, thermal insulation, air sealing and surface protection in a single panel, replacing the traditional construction mode of separate metal duct plus on-site insulation. With excellent performance and high reliability, it has become a preferred solution for energy-saving, green and high-standard HVAC projects.
Structure
The panel adopts a rigid sandwich structure produced by factory one-step foaming and bonding technology:
Core layer: High-density closed-cell rigid polyurethane (PU) foam, with a density of 40–45 kg/m³ and thickness ranging from 10mm to 40mm. It provides outstanding thermal insulation and stable mechanical performance.
Surface layers: High-strength aluminum foil (0.06–0.08mm) firmly bonded on both sides. The aluminum foil acts as an air barrier, vapor barrier and protective layer, improving airtightness, durability and hygiene.
Key Advantages of PU Pre-insulated HVAC Panel Over Traditional Ducts
Higher energy efficiency:
With ultra-low thermal conductivity of 0.020 W/(m·K), it effectively reduces heat loss or gain during air transmission, cutting HVAC energy consumption by 20–30%.
Lighter and faster installation:
About 70% lighter than galvanized steel panels, reducing building load and transportation difficulty. No on-site insulation is needed, saving 40–60% of installation time and labor cost.
Better moisture and rust resistance:
Closed-cell structure ensures near-zero water absorption (≤0.1%), preventing condensation, mold, rust and performance degradation, especially in high-humidity environments.
More hygienic and cleanroom-friendly:
Smooth, non-porous aluminum surface resists dust and bacteria, easy to clean and disinfect, meeting strict requirements for hospitals, food factories and cleanrooms.
Longer service life:
High toughness avoids cracking or powdering. Stable bonding prevents delamination. Service life reaches 20–50 years with much less maintenance than G.I. ducts.
Better sound absorption:
PU foam core effectively absorbs airflow noise and system vibration, providing quieter indoor environment than metal panels.
Key Specifications of PU Pre-insulated HVAC Panel
| Specification | Typical Value / Range | Key Insights |
|---|---|---|
| Core Material | Rigid Polyurethane (PU) Foam | Closed-cell structure, CFC/HCFC-free |
| Facings (Both Sides) | 60-80 micron Embossed Aluminum Foil | For indoor use; outdoor requires thicker 200µm or GI sheet |
| Panel Thickness | 10mm, 15mm, 20mm, 25mm, 30mm, 40mm | 20mm is a common standard for general applications |
| Standard Size | 2950/3950mm (L) x 1200mm (W) | Length varies by customers; width is typically 1200mm |
| Foam Density | 40 - 45 kg/m³ | Higher density generally indicates better structural strength |
| Thermal Conductivity | 0.020 W/m·K | Excellent insulation; much lower than fiberglass or mineral wool |
| Compressive Strength | ≥ 0.2 MPa (approx. 200 KPa) | Sufficient for standard ductwork static pressure |
| Water Absorption | ≤ 0.1% - 0.36% | Very low, thanks to the closed-cell foam structure |
| Operating Temperature | -50°C to +80°C | Suitable for most HVAC applications |
PU Pre-insulated HVAC Panel represents a modern, efficient and sustainable alternative to traditional GI duct systems. By integrating insulation, airtightness and structural performance into one panel, it delivers superior energy efficiency, easier installation and stronger durability. Its excellent moisture resistance, hygiene performance and noise reduction properties make it ideal for commercial, residential, cleanroom and high-humidity environments.
With long service life, low maintenance costs and significant energy savings, this panel fully meets the development trend of green building and low-carbon HVAC systems. For projects pursuing high efficiency, reliability and long-term value, it has become the preferred and cost-effective solution worldwide.
What is PU Pre-insulated Ductwork System?
The UNTDuct PU System stands apart as the most advanced and innovative pre-insulated air distribution ductwork solution worldwide. Proven for its ease of installation and maintenance, it represents a breakthrough in air distribution technology.
More than just pre-insulated PU aluminum panels, the UNTDuct PU Ductwork System is a comprehensive solution - complete with precision-engineered accessories, specialized machinery, purpose-built tools, and expert know-how - ensuring flawless construction and installation.
PU Panels
High-performance sandwich panels featuring rigid polyurethane (PU) insulation, fully clad with durable aluminum foil or aluminum sheets for superior duct construction.
Accessories:
Flanges, section bars, and specialized fittings designed for seamless duct joining and installation.
Equipment:
State-of-the-art bending machines, manual cuting tools and CNC Router Machine, enabling professional fabrication and installation-whether in a fully equipped workshop or directly on-site.
Know-How:
We provide unparalleled technical and commercial support to consultants and contractors, guaranteeing optimal system performance.
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